* {
    margin: 0px;
    padding: 0px;
    list-style: none;
    box-sizing: border-box;
}

.container {
    width: 1200px;
    margin: auto;
}

.header-nav {
    background-color: #ff792b;
}

.menu-box {
    display: flex;
    justify-content: space-between;
}

.menu1 {
    position: relative;
}

.menu1>a,.menu2>a {
    cursor: pointer;
    display: block;
    width: 130px;
    text-align: center;
    padding: 15px;
    color: #fff;
    font-weight: 700;
}

.menu1>a:hover,.menu2>a:hover {
    background-color: #dcedff;
    color: #ff792b
}

.menu1:hover>.sub-nav {
    display: block;
}

.sub-nav {
    display: none;
    position: absolute;
}

.menu2>a {
    background-color: #ff792b;
}